Detect potholes with ch201?

Hello all, I am working on a device to detect potholes, I want to use the ch201 features like range and a-scan, I captured the data and plotted it, but I haven't seen any pattern or something that I can identify as potholes, has anyone developed something similar?, or does anyone have an idea of ​​a ch201 configuration that can help me with that?, I Attached 2 images where the red circle is the floor.
Thanks!